如何搭建后端框架

第一步建立父工程：引入依赖

<parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.2.5.RELEASE</version>
  <!--设定一个空值将始终从仓库中获取，不从本地路径获取-->
  <relativePath/>
</parent>

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  <java.version>1.8</java.version>
  <spring-cloud.version>Hoxton.SR4</spring-cloud.version>
  <mapper.starter.version>2.0.3</mapper.starter.version>
  <mysql.version>8.0.19</mysql.version>
  <pageHelper.starter.version>1.2.5</pageHelper.starter.version>
  <intell.lates.version>1.0.0-SNAPSHOT</intell.lates.version>
  <fastDFS.client.version>1.26.1-RELEASE</fastDFS.client.version>
</properties>


<dependencyManagement>
  <dependencies>
    <!--spring-Cloud-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <!--版本管理-->
      <artifactId>spring-cloud-dependencies</artifactId>
      <version>${spring-cloud.version}</version>
      <type>pom</type>
      <!--scope定义了类包在项目的使用阶段。项目阶段包括： 编译，运行，测试和发布-->
      <scope>import</scope>
    </dependency>
    <!--通用Mapper启动器-->
    <dependency>
      <groupId>tk.mybatis</groupId>
      <artifactId>mapper-spring-boot-starter</artifactId>
      <version>${mapper.starter.version}</version>
    </dependency>
    <!--分页助手启动器-->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper-spring-boot-starter</artifactId>
      <version>${pageHelper.starter.version}</version>
    </dependency>
    <!--分页助手启动器-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <!--FastDFS客户端-->
    <dependency>
      <groupId>com.github.tobato</groupId>
      <artifactId>fastdfs-client</artifactId>
      <version>${fastDFS.client.version}</version>
    </dependency>
  </dependencies>
</dependencyManagement>

<dependencies>
  <dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-lang3</artifactId>
  </dependency>
  <dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
  </dependency>
</dependencies>
<build>
  <plugins>
    <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
    </plugin>
  </plugins>
</build>

第二步，建立eureka注册中心：
引入依赖：

<groupId>com.intell.common</groupId>
<artifactId>intell-registry</artifactId>
<dependencies>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
  </dependency>
</dependencies>

配置属性：

server:
  port: 10086
spring:
  application:
    name: intell-registry
eureka:
  client:
    service-url:
      defaultZone: http://127.0.0.1:10086/eureka

启动类：

package com.intell;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
/**
 * @description:
 * @program: intell
 * @author: Charles
 * @created: 2020-08-11 17:10
 **/
@SpringBootApplication
@EnableEurekaServer
public class RegistryApplication {
  public static void main(String[] args) {
    SpringApplication.run(RegistryApplication.class, args);
  }
}

第三步：搭建zuul路由
引入依赖：

<groupId>com.intell.common</groupId>
<artifactId>intell-gateway</artifactId>
<dependencies>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
  </dependency>
</dependencies>

配置属性：

server:
  port: 10010
spring:
  application:
    name: api-gateway
eureka:
  client:
    service-url:
      defaultZone: http://127.0.0.1:10086/eureka
zuul:
  prefix: /api #添加路由
hystrix:
  command:
    default:
      execution:
        isolation:
          thread:
            timeoutInMilliseconds: 5000 #熔断超时时长: 5000ms
ribbon:
  ConnectTimeout: 1000    # ribbon链接超时时长，1000ms没有建立连接，抛出异常
  ReadTimeout: 3500   #超过两秒没有读取数据，抛出异常
  MaxAutoRetries: 0  #当前服务重试次数
  MaxAutoRetriesNextServer: 0  #切换服务器重试次数，不重试

启动类：

/**
 * @description:
 * @program: intell
 * @author: Charles
 * @created: 2020-08-11 17:30
 **/
@EnableZuulProxy
@SpringCloudApplication
public class GatewayApplication {
  public static void main(String[] args) {
    SpringApplication.run(GatewayApplication.class, args);
  }
}

本文地址：https://blog.csdn.net/lrqforest/article/details/109622608